/* ============================================================
   NodoERP — landing de producto
   Identidad Smart Nodo: Lato, acento azure, superficie clara.
   Registro visual: editorial-técnico (retícula contable,
   secciones numeradas, claves del SAT en monoespaciado).
   ============================================================ */
@import url("lato.css");

:root{
  --azure:#0488fe;
  --azure-ink:#0366c4;
  --azure-deep:#01356b;
  --ink:#0b1520;
  --ink-2:#132232;

  --paper:#ffffff;
  --tint:#f4f9ff;
  --tint-2:#f7fafd;
  --body:#3c4a5a;
  --muted:#6b7787;
  --faint:#93a1b2;
  --line:#e6ecf3;
  --edge:rgba(4,136,254,.18);
  --edge-strong:rgba(4,136,254,.40);

  --green:#157f3d;
  --sand:#a1671f;

  --mono:ui-monospace,"SF Mono","Cascadia Mono","Roboto Mono",Menlo,Consolas,monospace;
  --max:1180px;
  --gut:clamp(20px,5vw,64px);
  --r:14px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  margin:0; background:var(--paper); color:var(--body);
  font-family:'Lato',system-ui,-apple-system,sans-serif;
  font-size:17px; line-height:1.65; -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{ max-width:100%; display:block; }
a{ color:inherit; }

/* ---------- tipografía ---------- */
h1,h2,h3,h4{ color:var(--ink); font-weight:900; letter-spacing:-.022em; line-height:1.08; margin:0; }
h1{ font-size:clamp(2.6rem,6.2vw,4.5rem); letter-spacing:-.034em; }
h2{ font-size:clamp(1.9rem,3.8vw,3rem); letter-spacing:-.028em; }
h3{ font-size:1.16rem; letter-spacing:-.012em; line-height:1.3; }
p{ margin:0 0 1.05em; }
.lead{ font-size:clamp(1.06rem,1.9vw,1.28rem); color:var(--body); line-height:1.6; }
.kicker{
  font-size:.735rem; font-weight:900; letter-spacing:.17em; text-transform:uppercase;
  color:var(--azure-ink); margin:0 0 18px;
}
.mono{ font-family:var(--mono); font-size:.86em; letter-spacing:-.01em; }

.wrap{ max-width:var(--max); margin:0 auto; padding-inline:var(--gut); }

/* ---------- retícula de fondo (papel contable) ---------- */
.ruled{
  position:absolute; inset:0; pointer-events:none; z-index:0;
  background-image:linear-gradient(var(--line) 1px,transparent 1px);
  background-size:100% 34px;
  -webkit-mask-image:linear-gradient(180deg,transparent,#000 12%,#000 72%,transparent);
          mask-image:linear-gradient(180deg,transparent,#000 12%,#000 72%,transparent);
  opacity:.75;
}

/* ---------- navegación ---------- */
.nav{
  position:sticky; top:0; z-index:60;
  background:rgba(255,255,255,.86); backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-in{ max-width:var(--max); margin:0 auto; padding:13px var(--gut);
  display:flex; align-items:center; gap:28px; }
.brand{ display:flex; align-items:center; gap:11px; text-decoration:none; margin-right:auto; }
.brand img{ height:23px; width:auto; }
.brand .sep{ width:1px; height:19px; background:var(--line); }
.brand .prod{ font-weight:900; color:var(--ink); letter-spacing:-.03em; font-size:1.13rem; }
.brand .prod em{ font-style:normal; color:var(--azure); }
.nav-links{ display:flex; gap:26px; }
.nav-links a{
  text-decoration:none; color:var(--muted); font-size:.92rem; font-weight:700;
  padding-bottom:2px; border-bottom:1.5px solid transparent; transition:.18s;
}
.nav-links a:hover{ color:var(--ink); border-color:var(--azure); }

.btn{
  display:inline-flex; align-items:center; gap:9px; text-decoration:none;
  font-weight:900; font-size:.95rem; letter-spacing:-.01em;
  padding:12px 22px; border-radius:100px; border:1.5px solid transparent;
  transition:transform .16s ease, box-shadow .16s ease, background .16s;
  white-space:nowrap;
}
.btn-primary{ background:var(--azure); color:#fff; box-shadow:0 6px 20px rgba(4,136,254,.30); }
.btn-primary:hover{ transform:translateY(-2px); box-shadow:0 12px 30px rgba(4,136,254,.40); background:var(--azure-ink); }
.btn-ghost{ border-color:var(--edge-strong); color:var(--azure-ink); background:var(--paper); }
.btn-ghost:hover{ background:var(--tint); transform:translateY(-2px); }
.btn-light{ background:#fff; color:var(--ink); }
.btn-light:hover{ transform:translateY(-2px); box-shadow:0 12px 30px rgba(0,0,0,.28); }
.btn svg{ flex:none; }
.nav .btn{ padding:10px 19px; font-size:.9rem; }

/* ---------- hero ---------- */
.hero{ position:relative; padding:clamp(60px,9vw,104px) 0 clamp(44px,6vw,70px); overflow:hidden; }
.hero::before{
  content:""; position:absolute; top:-340px; right:-220px; width:840px; height:840px; z-index:0;
  background:radial-gradient(circle,rgba(4,136,254,.13),rgba(4,136,254,.04) 45%,transparent 70%);
}
.hero .wrap{ position:relative; z-index:1; }
.hero-grid{ display:grid; grid-template-columns:1.06fr .94fr; gap:clamp(34px,5vw,68px); align-items:center; }
.hero h1 span{ color:var(--azure); }
.hero .lead{ max-width:33em; margin-top:22px; }
.hero-cta{ display:flex; flex-wrap:wrap; gap:13px; margin-top:32px; }
.hero-note{ font-size:.87rem; color:var(--faint); margin:16px 0 0; }

.facts{ display:flex; flex-wrap:wrap; gap:0; margin-top:42px; border-top:1px solid var(--line); }
.fact{ flex:1 1 130px; padding:16px 18px 0 0; }
.fact b{ display:block; font-family:var(--mono); font-size:1.42rem; font-weight:700; color:var(--ink); letter-spacing:-.04em; }
.fact span{ font-size:.79rem; color:var(--muted); letter-spacing:.02em; }

/* ---------- mock de documento ---------- */
.doc{
  position:relative; background:var(--paper); border:1px solid var(--line); border-radius:var(--r);
  box-shadow:0 26px 60px -24px rgba(11,21,32,.26), 0 2px 8px rgba(11,21,32,.05);
  overflow:hidden;
}
.doc::after{ content:""; position:absolute; inset:0; border-radius:var(--r); border:1px solid rgba(255,255,255,.7); pointer-events:none; }
.doc-bar{
  display:flex; align-items:center; gap:9px; padding:13px 18px;
  border-bottom:1px solid var(--line); background:var(--tint-2);
}
.doc-bar .dot{ width:9px; height:9px; border-radius:50%; background:#dde5ee; }
.doc-bar .t{ font-size:.79rem; color:var(--muted); font-weight:700; margin-left:6px; letter-spacing:.02em; }
.doc-body{ padding:22px 24px 26px; }
.doc-row{ display:flex; justify-content:space-between; align-items:baseline; gap:14px; padding:9px 0; border-bottom:1px dashed var(--line); }
.doc-row:last-of-type{ border-bottom:0; }
.doc-row .k{ font-size:.78rem; color:var(--faint); letter-spacing:.06em; text-transform:uppercase; font-weight:800; }
.doc-row .v{ font-family:var(--mono); font-size:.88rem; color:var(--ink); font-weight:700; text-align:right; word-break:break-all; }
.doc-head{ display:flex; align-items:flex-start; justify-content:space-between; gap:14px; margin-bottom:12px; }
.doc-head .amt{ font-family:var(--mono); font-size:1.75rem; font-weight:700; color:var(--ink); letter-spacing:-.045em; }
.doc-head .amt small{ font-size:.55em; color:var(--faint); font-weight:700; }
.doc-head .who{ font-size:.82rem; color:var(--muted); }

.chip{
  display:inline-flex; align-items:center; gap:6px; font-size:.73rem; font-weight:900;
  letter-spacing:.05em; text-transform:uppercase; padding:5px 11px; border-radius:100px;
  border:1px solid currentColor; white-space:nowrap;
}
.chip-ok{ color:var(--green); background:rgba(21,127,61,.08); }
.chip-blue{ color:var(--azure-ink); background:rgba(4,136,254,.09); }
.chip-sand{ color:var(--sand); background:rgba(161,103,31,.09); }
.chip .pulse{ width:6px; height:6px; border-radius:50%; background:currentColor; animation:pulse 2.4s ease-in-out infinite; }
@keyframes pulse{ 0%,100%{ opacity:1; transform:scale(1);} 50%{ opacity:.35; transform:scale(.75);} }

.doc-foot{ display:flex; gap:8px; flex-wrap:wrap; margin-top:18px; padding-top:16px; border-top:1px solid var(--line); }
.tag{
  font-size:.74rem; font-weight:800; color:var(--muted); background:var(--tint);
  border:1px solid var(--line); border-radius:7px; padding:5px 9px;
  display:inline-flex; align-items:center; gap:6px;
}
.tag svg{ color:var(--azure); }

/* ---------- tira de flujo ---------- */
.flow{ border-block:1px solid var(--line); background:var(--tint-2); }
.flow-in{ max-width:var(--max); margin:0 auto; padding:26px var(--gut);
  display:flex; align-items:center; gap:12px; flex-wrap:wrap; }
.flow-step{ display:flex; align-items:center; gap:11px; }
.flow-step .n{
  width:26px; height:26px; flex:none; border-radius:50%; display:grid; place-items:center;
  font-family:var(--mono); font-size:.76rem; font-weight:700; color:#fff; background:var(--azure);
}
.flow-step .lbl b{ display:block; color:var(--ink); font-size:.93rem; font-weight:900; letter-spacing:-.01em; line-height:1.2; }
.flow-step .lbl span{ font-size:.74rem; color:var(--faint); }
.flow-arrow{ flex:1 1 22px; height:1px; background:linear-gradient(90deg,var(--edge),var(--edge-strong)); min-width:18px; position:relative; }
.flow-arrow::after{
  content:""; position:absolute; right:-1px; top:-2.5px;
  border-left:6px solid var(--edge-strong); border-block:3px solid transparent;
}

/* ---------- secciones ---------- */
section{ position:relative; }
.sec{ padding:clamp(62px,8.5vw,110px) 0; }
.sec-head{ max-width:44rem; margin-bottom:clamp(34px,4.5vw,56px); }
.num{
  display:inline-flex; align-items:center; gap:12px; margin-bottom:16px;
}
.num i{
  font-style:normal; width:34px; height:34px; border-radius:50%; display:grid; place-items:center;
  border:1.5px solid var(--edge-strong); color:var(--azure-ink);
  font-family:var(--mono); font-size:.84rem; font-weight:700;
}
.num u{
  text-decoration:none; font-size:.735rem; font-weight:900; letter-spacing:.17em;
  text-transform:uppercase; color:var(--azure-ink);
}

/* editorial: el problema */
.editorial{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(30px,5vw,64px); align-items:start; }
.pull{
  border-left:3px solid var(--azure); padding:4px 0 4px 24px; margin:26px 0 0;
  font-size:clamp(1.1rem,2vw,1.35rem); font-weight:700; color:var(--ink);
  letter-spacing:-.018em; line-height:1.45;
}
.contrast{
  background:var(--tint); border:1px solid var(--edge); border-radius:var(--r); padding:26px 28px;
}
.contrast h3{ margin-bottom:14px; }
.xlist{ list-style:none; margin:0; padding:0; }
.xlist li{ display:flex; gap:12px; padding:9px 0; border-bottom:1px dashed var(--line); font-size:.97rem; }
.xlist li:last-child{ border-bottom:0; }
.xlist .ic{ flex:none; width:19px; height:19px; margin-top:3px; }

/* ---------- tarjetas de funcionalidad ---------- */
.cards{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line);
  border:1px solid var(--line); border-radius:var(--r); overflow:hidden; }
.card{ background:var(--paper); padding:30px 28px 32px; transition:background .2s ease; position:relative; }
.card:hover{ background:var(--tint-2); }
.card .ic{
  width:38px; height:38px; border-radius:10px; display:grid; place-items:center; margin-bottom:18px;
  background:rgba(4,136,254,.10); color:var(--azure-ink);
}
.card h3{ margin-bottom:9px; }
.card p{ font-size:.95rem; margin:0; color:var(--body); }
.card .kv{ margin-top:16px; display:flex; flex-wrap:wrap; gap:6px; }
.kv code{
  font-family:var(--mono); font-size:.72rem; font-weight:700; color:var(--azure-ink);
  background:rgba(4,136,254,.08); border:1px solid var(--edge); border-radius:6px; padding:3px 7px;
}

/* ---------- capa fiscal (inversión a tinta) ---------- */
.dark{ background:var(--ink); color:#aebccb; position:relative; overflow:hidden; }
.dark::before{
  content:""; position:absolute; inset:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:100% 34px;
  -webkit-mask-image:radial-gradient(90% 65% at 50% 40%,#000,transparent);
          mask-image:radial-gradient(90% 65% at 50% 40%,#000,transparent);
}
.dark::after{
  content:""; position:absolute; top:-30%; left:50%; transform:translateX(-50%);
  width:1100px; height:700px; z-index:0;
  background:radial-gradient(ellipse,rgba(4,136,254,.20),transparent 68%);
}
.dark .wrap{ position:relative; z-index:1; }
.dark h2,.dark h3{ color:#fff; }
.dark .num i{ border-color:rgba(4,136,254,.55); color:#5cb4ff; }
.dark .num u{ color:#5cb4ff; }
.dark .lead{ color:#b9c6d4; }
.dark .cards{ background:rgba(255,255,255,.09); border-color:rgba(255,255,255,.11); }
.dark .card{ background:var(--ink-2); }
.dark .card:hover{ background:#182a3d; }
.dark .card p{ color:#a9b8c8; }
.dark .card .ic{ background:rgba(4,136,254,.18); color:#5cb4ff; }
.dark .kv code{ color:#7cc3ff; background:rgba(4,136,254,.12); border-color:rgba(4,136,254,.30); }
.dark .fine{ color:#7e8ea0; }

/* franja de cumplimiento */
.compliance{
  margin-top:clamp(34px,4.5vw,52px); display:grid; grid-template-columns:repeat(4,1fr); gap:1px;
  background:rgba(255,255,255,.09); border:1px solid rgba(255,255,255,.11); border-radius:var(--r); overflow:hidden;
}
.compliance div{ background:var(--ink-2); padding:22px 20px; }
.compliance b{ display:block; font-family:var(--mono); color:#fff; font-size:1.05rem; font-weight:700; letter-spacing:-.02em; margin-bottom:5px; }
.compliance span{ font-size:.83rem; color:#93a4b6; }

/* ---------- planes ---------- */
.plans{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; align-items:start; }
.plan{
  border:1px solid var(--line); border-radius:var(--r); padding:30px 28px 32px; background:var(--paper);
  display:flex; flex-direction:column; transition:transform .2s ease, box-shadow .2s ease;
}
.plan:hover{ transform:translateY(-4px); box-shadow:0 20px 44px -22px rgba(11,21,32,.25); }
.plan.featured{ border:1.5px solid var(--azure); box-shadow:0 20px 50px -24px rgba(4,136,254,.45); position:relative; }
.plan.featured::before{
  content:"Más contratado"; position:absolute; top:-11px; left:28px;
  background:var(--azure); color:#fff; font-size:.68rem; font-weight:900; letter-spacing:.1em;
  text-transform:uppercase; padding:4px 11px; border-radius:100px;
}
.plan h3{ font-size:1.3rem; }
.plan .price{ margin:16px 0 4px; font-family:var(--mono); font-size:2.3rem; font-weight:700; color:var(--ink); letter-spacing:-.05em; }
.plan .price small{ font-size:.38em; color:var(--faint); font-weight:700; letter-spacing:0; }
.plan .price-note{ font-size:.8rem; color:var(--faint); margin:0 0 20px; }
.plan .folios{
  background:var(--tint); border:1px solid var(--edge); border-radius:9px; padding:11px 14px; margin-bottom:20px;
}
.plan .folios b{ font-family:var(--mono); color:var(--azure-ink); font-size:1rem; }
.plan .folios span{ display:block; font-size:.78rem; color:var(--muted); }
.plan ul{ list-style:none; margin:0 0 24px; padding:0; flex:1; }
.plan li{ display:flex; gap:10px; font-size:.93rem; padding:7px 0; border-bottom:1px dashed var(--line); }
.plan li:last-child{ border-bottom:0; }
.plan li svg{ flex:none; margin-top:4px; color:var(--azure); }
.plan .btn{ width:100%; justify-content:center; }

.everyone{
  margin-top:26px; border:1px solid var(--line); border-radius:var(--r); background:var(--tint-2);
  padding:24px 28px;
}
.everyone h4{ font-size:.75rem; letter-spacing:.15em; text-transform:uppercase; color:var(--muted); margin-bottom:14px; }
.everyone ul{ list-style:none; margin:0; padding:0; display:grid; grid-template-columns:repeat(3,1fr); gap:9px 26px; }
.everyone li{ display:flex; gap:9px; font-size:.92rem; }
.everyone li svg{ flex:none; margin-top:4px; color:var(--azure); }

.folios-table{ width:100%; border-collapse:collapse; margin-top:22px; font-size:.95rem; }
.folios-table th,.folios-table td{ text-align:left; padding:11px 14px; border-bottom:1px solid var(--line); }
.folios-table th{ font-size:.73rem; letter-spacing:.12em; text-transform:uppercase; color:var(--faint); font-weight:900; }
.folios-table td:not(:first-child){ font-family:var(--mono); font-weight:700; color:var(--ink); }
.folios-table tbody tr:nth-child(odd){ background:var(--tint-2); }
.fine{ font-size:.85rem; color:var(--muted); }

/* ---------- puesta en marcha ---------- */
.steps{ display:grid; grid-template-columns:repeat(2,1fr); gap:1px; background:var(--line);
  border:1px solid var(--line); border-radius:var(--r); overflow:hidden; }
.step{ background:var(--paper); padding:24px 26px; display:flex; gap:18px; }
.step .e{
  flex:none; font-family:var(--mono); font-size:.8rem; font-weight:700; color:var(--azure-ink);
  border:1.5px solid var(--edge); border-radius:8px; padding:5px 9px; height:fit-content; background:var(--tint);
}
.step b{ display:block; color:var(--ink); font-size:1rem; margin-bottom:4px; letter-spacing:-.01em; }
.step p{ font-size:.92rem; margin:0; }

/* ---------- cierre ---------- */
.cta{
  background:linear-gradient(135deg,var(--azure-deep),var(--azure-ink) 55%,var(--azure));
  color:#fff; border-radius:var(--r); padding:clamp(40px,6vw,66px) clamp(28px,5vw,60px);
  position:relative; overflow:hidden; text-align:center;
}
.cta::before{
  content:""; position:absolute; inset:0;
  background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:100% 34px; -webkit-mask-image:radial-gradient(70% 90% at 50% 0,#000,transparent); mask-image:radial-gradient(70% 90% at 50% 0,#000,transparent);
}
.cta > *{ position:relative; }
.cta h2{ color:#fff; max-width:18em; margin:0 auto; }
.cta p{ color:rgba(255,255,255,.88); max-width:38em; margin:16px auto 28px; }
.cta .row{ display:flex; gap:13px; justify-content:center; flex-wrap:wrap; }

footer{ border-top:1px solid var(--line); padding:36px 0 44px; margin-top:clamp(56px,7vw,90px); }
.foot-in{ display:flex; align-items:center; gap:20px; flex-wrap:wrap; }
.foot-in img{ height:22px; }
.foot-in .fine{ margin-left:auto; text-align:right; }
footer a{ color:var(--azure-ink); font-weight:700; text-decoration:none; }
footer a:hover{ text-decoration:underline; }

/* ---------- revelado al hacer scroll ---------- */
.rv{ opacity:0; transform:translateY(20px); transition:opacity .7s cubic-bezier(.2,.7,.3,1), transform .7s cubic-bezier(.2,.7,.3,1); }
.rv.in{ opacity:1; transform:none; }
@media (prefers-reduced-motion:reduce){
  .rv{ opacity:1; transform:none; transition:none; }
  html{ scroll-behavior:auto; }
  .chip .pulse{ animation:none; }
}

/* ---------- adaptativo ---------- */
@media (max-width:1000px){
  .cards,.plans,.compliance,.everyone ul{ grid-template-columns:repeat(2,1fr); }
  .hero-grid,.editorial,.steps{ grid-template-columns:1fr; }
  .hero-grid .doc{ max-width:520px; }
}
@media (max-width:760px){
  body{ font-size:16px; }
  .nav-links{ display:none; }
  .cards,.plans,.compliance,.everyone ul,.steps{ grid-template-columns:1fr; }
  .flow-arrow{ display:none; }
  .flow-in{ gap:16px; }
  .flow-step{ flex:1 1 100%; }
  .foot-in .fine{ margin-left:0; text-align:left; }
  .doc-head{ flex-direction:column; }
}